JP2006288288A - Telescopically extensible rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the locked state of a telescopically extensible rod by using a simple structure in a joint part. <P>SOLUTION: A joint part B to keep the extended state of the tip section rod 1 relative to the butt section rod 2 is composed of a straight part 2B formed on the butt end rod member 2 and having a definite constant diameter at the contacting face and a protruded part 1a formed on the tip end rod member 1 and contacting with the contacting face 2B of the straight part 2B. A conical tapered receiving face 2A is formed on the inner circumference of the butt side rod member 2 and a conical tapered contact face 1A contacting with the tapered receiving face 2A is formed on the outer circumference of the tip side rod member 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention switches between a state in which the heel side housing is housed in the buttock side housing and a state in which the heel side housing is pulled out from the buttock side housing, and the extended state is maintained. The present invention relates to a swing rod provided with a mating portion.

As the above-mentioned mating portion, the inclined surface that is in pressure contact with the outer peripheral surface of the heel-side end of the heel-side housing and the inner peripheral surface of the heel-side end of the heel-side housing Is formed. The extended state of the tip side housing is maintained by the pressure contact state between the inclined surfaces.
In the case of adopting a configuration in which the extended state of the tip side housing is maintained in the pressure contact state as described above, when moisture or the like is interposed in the pressure contact surface, a so-called fixed state appears. In other words, even if it is going to return the tip side housing from the extended state to the contracted state, both inclined surfaces are in a state of being strongly bonded at the press contact portion, so even if normal return force is applied, the extended state is released. It happens that you can't.
Therefore, in this case, it is impossible to pay, and it is difficult to finish.
In consideration of these points, a small protrusion is formed on the outer peripheral surface of the butt end of the heel side skeleton and presses against the inclined surface formed on the butt end of the butt end skeleton. There is a configuration in which a discharge path is formed so that moisture does not intervene between them (see Patent Document 1).

Actual No. 2569413 (paragraph number [0009], FIG. 1)

Certainly, it can be said that the sticking phenomenon is promoted when moisture is present in the mating portion, but the sticking phenomenon is not limited to that. That is, as shown in the above prior art, the mating portion is in a pressure contact state between the inclined inner peripheral surface on the heel side of the heel side housing and the inclined outer peripheral surface formed on the heel side of the heel side housing. Is what happens by becoming. When both inclined surfaces are in pressure contact state, the heel tip opening of the heel side housing receives a force in a widening direction, and the heel side end of the heel side housing receives a contracting force and elastically deforms from each other. It will be pressed in the state to do. Therefore, since it press-contacts in an elastic deformation state, it will be in a stronger joining state and will be in the state where it is difficult to return to the original state.
Such a pressure contact state is considered to be no exception to the conventional technology achieved by pressing the small protrusion against the inclined surface on the other side. Even if it is a structure that is hard to fall into the sticking phenomenon compared to those that do not form small protrusions by being strongly pressed against the inclined surface, the point of being in a pressure contact state when performing the alignment operation cannot be eliminated, and further Needed to improve the mating part.

  An object of the present invention is to provide a fishing rod housing that can eliminate such a drawback and avoid a fixed state while reducing a manufacturing burden.

〔Constitution〕
The characteristic configuration of the invention according to claim 1 is to form a mating portion for holding the heel side housing in an extended state with respect to the heel side housing, and to form the mating portion between the heel side housing and the buttock. A straight part formed on one side of the side casing and the contact surface maintaining a constant diameter, and a protrusion formed on the other side of the tip side casing and the buttock side casing and contacting the contact surface of the straight section The function and effect are as follows.

[Action]
By forming the straight part in the mating part, even if the stretching operation is suddenly performed, the state where the projecting part and the straight part come into contact appears, so the operating force depends on the operation resistance between the projecting part and the straight part. At the same time as it is alleviated, it is less likely that the angler will be aware of the state because of the constant resistance to manipulation and suddenly fall into a locked state.

〔effect〕
Therefore, the fixing phenomenon can be prevented and the operational feeling at the time of the alignment operation can be improved only by performing a simple modification to form the straight portion.

  A characteristic configuration of the invention according to claim 2 is that a conical inclined receiving surface is formed on the inner peripheral surface of the heel side housing, and the inclined receiving surface is formed on the outer peripheral surface of the heel side housing. A conical inclined abutting surface that abuts is formed, and the operation and effect thereof are as follows.

[Function and effect]
The same effect as that of the invention according to claim 1 is obtained. Then, by the contact between the inclined receiving surface and the inclined contact surface, the heel side housing can be maintained in an extended state so as not to protrude from the buttock side housing.
Therefore, even when the contact between the inclined receiving surface and the inclined contact surface is reached by the cooperative action of the straight portion that suppresses a sudden extension operation and the final inclined receiving surface, further pulling out is performed. The operation is prevented and it is avoided that it becomes stuck.

  According to a third aspect of the present invention, the protrusion is formed at the heel end of the heel side housing, and is directed toward the heel side of the heel end opening of the heel side housing. In this point, a cut-out recess is formed, and the operation and effect thereof are as follows.

[Function and effect]
The butt end opening has a notch recess, and when the protrusion receives contact resistance due to contact with the straight portion, the protrusion receives pressure along the radial direction. This pressure causes deformation in the direction of narrowing the notch width at the notch recess so that the contact resistance force does not change greatly even if the pressure fluctuates.
In this way, the contact resistance force between the protrusion and the straight portion can be made in a state that does not change much, so that the operational feeling is improved.

  The characteristic configuration of the invention according to claim 4 is to form a mating portion that holds the heel side housing in an extended state with respect to the heel side housing, and the contact surface maintains a constant diameter on the contact surface. And a conical inclined receiving surface and a conical inclined contact surface that contacts the inclined receiving surface, and An inclined receiving surface and the straight portion are formed on an inner peripheral surface of the buttock side housing in a state where the inclined receiving surface is located on the tip side, and the inclined contact surface and the protrusion are The inclined contact surface is formed on the outer peripheral surface of the heel side housing in a state where the inclined contact surface is located on the heel side, and the operation and effect thereof are as follows.

[Function and effect]
When the heel side housing is pulled out from the heel side housing and the mating operation is performed at the mating portion, first, the straight portion located on the buttock side and the protruding portion start to contact each other. As the drawing operation is performed, the protruding portion comes into contact with the straight portion and moves, and finally, the inclined contact surface comes into contact with the inclined receiving surface, and the extended state of the tip side housing is determined.
Therefore, the inclined contact surface does not contact the inclined receiving surface suddenly, but the contact state between the protrusion and the straight portion is performed in advance, so that the protrusion and the straight portion can be pulled out while feeling the contact state. The effect of avoiding the surface that leads to the fixed state from the point that it can have a margin for operation is high.

[First embodiment]
A description will be given of a configuration mainly applied to the intermediate rod from the second rod to the upper portion of the swing rod, particularly the middle rod from the fourth rod or the like. The small-diameter side casing is referred to as a tip-side casing 1 and the large-diameter side casing is referred to as a buttock-side casing 2.
Although not shown in the figure, the housing is manufactured as follows. That is, reinforcing fibers such as carbon fibers are aligned in one direction, and the aligned reinforcing fibers are impregnated with a thermosetting resin such as epoxy to form a prepreg. The prepreg cut into a predetermined shape is wound around a mandrel, the one formed in a plurality of layers is fired, fired, cut into a predetermined length, and finished to obtain a casing.
As the reinforcing fiber constituting the prepreg, glass fiber, aramid fiber, alumina fiber or the like can be used in addition to the carbon fiber, and as the resin, thermosetting resin such as phenol resin or polyester resin or thermoplastic resin can be used.

The configuration of the tip side casing 1 will be described. As shown in FIG. 1 (a), the heel side housing 1 is formed with a conical inclined contact surface 1A having a diameter increasing toward the buttock end on the outer peripheral surface of the buttock end, A projecting portion 1a as a projecting portion is provided upright on the outer peripheral surface 1B exhibiting a slight inclined state (or maintaining the same diameter) on the buttocks side of the contact surface 1A.
The protrusions 1a are provided at three locations in the circumferential direction, and may be formed of a resin such as an epoxy resin or a urethane resin, or ceramics or metal may be formed by a vacuum deposition method or the like.

As shown in FIGS. 1A and 1C, a notch recess 1b that is recessed in a triangular shape toward the tip side is formed in the tip end opening a of the tip side housing 1. As shown in FIG. The protrusion 1a and the cutout recess 1b are formed at three locations in the circumferential direction, and are formed at 120 ° positions.
By forming the notch recess 1b in this way, the portion where the notch recess 1b is formed softens the rigidity due to the notch effect, whereby the buttock end opening a is shortened up and down and swells left and right. It is easy to deform.

The configuration of the buttock side housing 2 will be described. As shown in FIG. 1 (a), an inclined receiving surface 2A having a larger diameter toward the buttock side is formed on the inner peripheral surface of the heel side, and further from the buttock end portion of the inclined receiving surface 2A A straight portion 2B that maintains the same inner diameter toward the side is formed, and a portion 2C having a general inclination (5/1000) as a casing from the butt end of the straight portion 2B is formed. is there.
As described above, the inclined contact surface 1A and the protrusion 1a of the tip side housing 1 and the inclined receiving surface 2A and the straight portion 2B constitute the mating portion B.

With the above configuration, when the heel side housing 1 is housed in the heel side housing 2 and pulled out to the extended state, first, the protrusion 1a is inscribed in the straight portion 2B, and the heel side heel 1 While the pulling operation of the body 1 is continued, the protruding portion 1a is inscribed in the straight portion 2B, giving an appropriate pulling resistance to the pulling operation, and allowing the angler to recognize that the mating portion B has started to be engaged. it can.
When the drawer operation is further performed, as shown in FIG. 1 (b), the inclined contact surface 1A finally comes into contact with the inclined receiving surface 2A. 1 is prevented from being pulled out.

Table 1 shows the numerical values measured as to how much the pull-out resistance acting on the angler's hand is when pulling out the heel-side skeleton 1 from the heel-side skeleton 2 as described above. Thus, the influence of the difference in the cutting depth w of the cutting recess 1b is examined. As shown in FIG. 3, the outer surface diameter D of the protrusion 1a is slightly larger (0.5 mm or less) than the inner surface diameter of the straight portion 2B of the buttock side housing 2, where D = 21.98 mm. The measurement was performed with the diameter set to. When the result is evaluated, it is considered that an appropriate tensile resistance force of 7.5 kg is provided when the cutting depth w and the axial length W of the protruding portion 1a are substantially the same (6 mm).

The above-described structure of the mating portion B has a high anti-adhesion effect as described above, and test data demonstrating the effect is shown in Table 2. A test apparatus for obtaining the data of Table 2 is shown in FIG. 4 and is fitted to the heel side housing 1 and the heel side housing 2 to suspend and support the heel side housing 1. The fitting force between the heel side housing 1 and the heel side housing 2 is initially set to 5 kg.
The movement amount L of the buttock side housing 2 in a state where the weight Wh is dropped from the height H with respect to the buttock side housing 2 and is received by the receiving flange 2D formed on the buttock side housing 2. It was the above data that was measured.

The amount of movement of the weight Wh was changed stepwise from 50 mm to 150 mm, the amount of movement L was measured, and whether or not the weight Wh = 1 Kg could be returned to the initial state before dropping was measured. It is. That is, it was measured whether or not the buttock side housing 2 can be returned from the moved state to the initial state, and whether or not it has fallen into a so-called fixed state, both of which are returned to the original state. It can be seen that there was no difficulty and that it was possible to provide the mating portion B that hardly gets stuck.

[Second Embodiment]
Here, the notch recess 1b as shown in the first embodiment is not provided at the heel end of the heel-side housing 1, and only the protrusion 1a is provided. In this case, the number of protrusions 1a is arbitrary, but FIG. 2 shows a configuration in which four protrusions 1a are arranged at four locations in the circumferential direction.
Even when only the protruding portion 1a is formed in this way, the contact between the protruding portion 1a and the straight portion 2B formed on the heel-side housing 2 gives the angler a good operational feeling during the operation. Can do.

About the structure which provided only the above-mentioned protrusion part 1a, the tensile force concerning the protrusion part 1a which contacts and moves the straight part 2B described also in 1st Embodiment was measured. As shown in FIG. 2, here, not only the case where the protrusions 1a are provided at the four locations in the circumferential direction, but also the tests provided at the eight locations were tested. There are 5 data for 8 places, and 3 data for 4 places, considering the individual differences of the housings, that is, the separation and the variation in the dimension D between the protrusions. It was done.
There is no individual difference from the test results, and there is a difference in tensile resistance due to the difference in the number of protrusions 1a. It can be seen that when there are eight protrusions 1a, there is a tensile resistance of 5 kg, and with four protrusions 1a there is a tensile resistance of 3 kg.

  As described above, the straight portion 2B and the inclined receiving surface 2A are formed on the buttock side housing 2 shown in the first and second embodiments, and the inclined contact surface 1A is formed on the heel side housing 1. The present invention product provided with the protruding portion 1a, the conventional product that prevents the slipping by pressing the inclined surfaces that are formed more gently than the inclined contact surface 1A, and the tip of the tip FIG. 5 shows a graph comparing the degree of fixation with a paint protrusion in which a bulge is formed at the butt end of the side casing and a hard paint is sprayed on the bulge to form a number of paint protrusions. .

  The tensile resistance against the stroke during the alignment operation of the product of the present invention, the conventional product, and the paint projection product was measured. As data, the measurement results are shown by two line segments showing substantially parallel changes. The lower line segment indicates the pulling resistance when the small-diameter side housing 1 is pulled out, and the upper line segment is pushed in from the state where the small-diameter side housing 1 is pulled out to return to the original state. It shows the fluctuation of the pushing force at the time of every operation. It can be said that the smaller the push-pull resistance, the less the fixing force.

From the result of FIG. 5, in the case of the product of the present invention (solid line), a sufficient stroke from 6 mm to 22 mm can be obtained with a constant pulling resistance (5 kg) by contact between the straight portion 2B and the protruding portion 1a. Can read points.
In the case of paint protrusions (one-dot chain line), the maximum push / pull resistance is shown at a stroke of 16 mm, and the maximum push / push resistance does not increase so much that sticking occurs (approximately 30 kg), but the push / pull resistance is not It shows that it grows gradually.
In the case of the conventional product (two-dot chain line), the maximum pulling resistance is increased to nearly 60 kg with a half stroke (about 14 mm) of the present invention. Here, if an operating force of close to 60 kg is required as a return force, it is considered that the maximum operating force of one angler is between about 40 kg and 60 kg. It has reached an area where it is almost impossible to restore the original state from the pulled-out state alone.
Based on the evaluation results as described above, it is recognized that the product of the present invention is also excellent in measures against sticking.

[Third Embodiment]
The state which changed the formation object of a projection part and a straight part is shown. As shown in FIG. 6 (a), an inclined contact surface 1A is formed on the outer peripheral surface of the heel end portion of the heel side housing 1 in the same manner as in the first embodiment, and an outer surface is provided on the heel side. A straight portion 1C having a constant diameter is provided.
On the other hand, an inclined receiving surface 2A with which the inclined contact surface 1A abuts is formed on the inner peripheral surface of the heel end portion of the buttock side housing 2, and inward toward the buttock side of the inclined receiving surface 2A. A projecting portion 2E is formed to project.

  When the heel side housing 1 configured as described above is housed in the heel side housing 2, first, the straight portion 1 </ b> C of the heel side housing 1 contacts the protrusion 2 </ b> E of the heel side housing 2. To do. If the drawer operation is continued while maintaining the contact state between the straight portion 1C and the protrusion 2E, the inclined contact surface 1A comes into contact with the inclined receiving surface 2A as shown in FIG. Disappear.

[Fourth Embodiment]
Although what formed the projection parts 1a and 2E as what contacts the other party's straight part was shown, as shown to FIG. A flange-shaped protrusion 1D may be provided at the end of the heel. That is, the flange-shaped protrusion 1D is formed, and the outer peripheral surface of the flange-shaped protrusion 1D is configured to contact the straight portion 2B of the buttock side housing 2. In order to make the contact with the straight portion 2B of the flange-like protrusion 1D elastic, split grooves 1d that enter the flange-like protrusion 1D along the radial direction from the outer peripheral surface over a certain length are provided at a plurality of positions in the circumferential direction. You may provide over. Thereby, the pressure which contacts the straight part 2B of the flange-like protruding part 1D can be reduced and can be made substantially constant.

[Fifth Embodiment]
Here, the structure which replaced the formation position of a straight part and an inclined surface in the vertical axis direction is demonstrated. As shown in FIG. 8, a straight portion 1 </ b> C is formed on the heel side housing 1, and an inclined contact surface 1 </ b> A is formed on the heel side. On the other hand, a protrusion 2E is formed on the inner peripheral surface of the heel-side end portion of the buttock side housing 2, and an inclined receiving surface 2A is formed on the buttock end side of the protrusion 2E. It may be configured.
Even in such a configuration, when the heel side housing 1 is pulled out from the heel side housing 2, the straight portion 1C of the heel side housing 1 comes into contact with the protrusion 2E and finally the inclined contact surface. 1A abuts against the inclined receiving surface 2A, and the extended state of the heel side housing 1 from the heel side housing 2 is set.

[Sixth Embodiment]
Here, the thing which replaced the formation object of a projection part and a straight part in the thing of 4th Embodiment which presented the structure which replaced the formation position of a straight part and an inclined surface in the axial direction is demonstrated. As shown in FIG. 9, a straight portion 2B is formed on the inner peripheral surface of the buttock side housing 2, and an inclined receiving surface 2A is formed on the buttock side. On the other hand, the protrusion part 1a is formed on the outer peripheral surface of the tip end part of the tip side, and the inclined contact surface 1A is formed on the tip end side of the protrusion part 1a. May be.
Even in such a configuration, when the heel-side housing 1 is pulled out from the heel-side housing 2, the straight portion 2B of the heel-side housing 2 comes into contact with the protrusion 1a and finally the inclined contact surface. 1A abuts against the inclined receiving surface 2A, and the extended state of the heel side housing 1 from the heel side housing 2 is set.

[Another embodiment]
(1) The configuration described above may be applied to a through rod that inserts a fishing line into the rod body.
(2) Moreover, as above-mentioned structure, the 2nd as a 1st hand side housing as a telescopic butt side housing and a 2nd as a buttock side housing of a diameter larger than that at the hand side housing of a swinging cage In addition to forming the above-mentioned mating portion which is configured by the hand side housing 2 and press-contacting the first hand side housing with the first hand side housing pulled out from the second hand side housing, the first hand side housing 2 An expansion and contraction type swinging rod having a configuration capable of maintaining the state in the state of being housed in the hand side housing may also be applied.
In this case, as a configuration capable of holding the first proximal housing in the second proximal housing, it is not necessary to apply the mating portion B, and the first proximal housing is not necessary. It may be configured by providing a holding rubber that internally fits the butt end.

(A) is a longitudinal side view showing a state before the heel side housing is stored in the butt side housing, (B) is a longitudinal side view showing a state where the heel side housing is pulled out from the butt side housing. Fig. 3 (c) is a perspective view showing a protrusion and a notch recess formed in the heel end opening of the heel side housing. (A) is a side view showing a state in which only a protrusion is formed on the heel end of the heel side skeleton, and (B) is a rear view in (A). The side view which shows the shape of the projection part and notch | incision recessed part which were formed in the heel end opening part of the heel side side frame for obtaining the result of Table 1 Side view showing a test device for the state of fixation between the heel side skeleton and the heel side skeleton The figure which shows the measurement result of push / pull resistance at the time of switching to the extension state of this invention product, a conventional product, and a paint projection product (A) is a vertical side view showing the state before the heel side housing is stored in the heel side housing, and (b) is the heel side. A longitudinal side view showing a state in which the housing is pulled out from the buttock side housing The other embodiment of the protrusion formed in the heel end of the heel side skeleton is shown, (A) is a longitudinal side view, and (B) is a rear view. A vertical side view showing a state in which the straight portion and the inclined contact surface are formed interchangeably, and showing a state in which the heel side housing is pulled out from the buttock side housing. FIG. 9 is a longitudinal side view showing a state in which the attachment target of the straight portion and the protrusion in FIG. 8 is changed, and showing a state in which the heel side housing is pulled out from the heel side housing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 heel side housing | casing 1A inclination contact surface 1C, 1D, 2B straight part 1a, 2E protrusion 1b notch recessed part 2 butt end side housing 2A inclination receiving surface B mating part a butt end opening

Claims (4)

  A mating portion that holds the heel side housing in an extended state with respect to the heel side housing is formed, and the mating portion is formed on one of the heel side housing and the butt side housing and is contacted The swing rod is composed of a straight portion that maintains a constant diameter, and a protrusion that is formed on the other end of the heel side housing and the heel side housing and contacts the contact surface of the straight portion.   A conical inclined receiving surface is formed on the inner peripheral surface of the buttock side housing, and a conical inclined contacting surface that contacts the inclined receiving surface is formed on the outer peripheral surface of the heel side housing. The swing rod according to claim 1 formed.   The protrusion is formed at the heel end of the heel side housing, and a notch recess is formed in the heel end opening of the heel side housing to be recessed toward the heel side. The swing rod according to claim 1 or 2.   A mating portion that holds the tip side housing in an extended state with respect to the heel side housing is formed, and the mating portion is formed between a straight portion having a constant contact surface and a contact surface of the straight portion. And a conical inclined receiving surface and a conical inclined contact surface that contacts the inclined receiving surface, and the inclined receiving surface and the straight portion are An inclined receiving surface is formed on the inner peripheral surface of the buttock side housing in a state where the inclined contact surface is positioned on the tip side, and the inclined contact surface and the protrusion are positioned on the tip side. A swing bar formed on the outer peripheral surface of the tip side casing in a state.

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